Procedural Foilage Spawner on tiled map

So I have a procedural Foilage Spawner with a list of assets in it. When I try to resimulate the spawner on my persistent level it’s not spawning any of the assets on my map. Any idea as to why it’s not working on tiled maps?

I’m using 4.20, and PLE from the market place. It uses procedural spawning foilage systems. On a single height map I can resimulate and it produces foilage, but on a tiled map it’s not doing anything. it takes a moment but nothing shows up.

it would seem like procedural foilage spawners aren’t working on tiled maps at all. I created a fresh one and it also did nothing.